Speed legacy photo serving and skip tracking on download routes.

Tighten thumbnail/legacy photo handling and exclude download/photo traffic from session visitor tracking so those hot paths stay cheap.

app/Http/Controllers/Legacy/LegacyArtworkPhotoController.php

@@ -8,6 +8,7 @@ use App\Http\Controllers\Controller;
 use App\Models\Artwork;
 use Illuminate\Database\Eloquent\Builder;
 use Illuminate\Http\RedirectResponse;
+use Illuminate\Http\Response;
 use Illuminate\Support\Facades\Schema;
 
 final class LegacyArtworkPhotoController extends Controller
@@ -26,25 +27,39 @@ final class LegacyArtworkPhotoController extends Controller
 
     private static ?bool $hasLegacyIdColumn = null;
 
-    public function __invoke(string $encoded, string $size, string $extension): RedirectResponse
+    public function __invoke(string $encoded, string $size, string $extension): RedirectResponse|Response
     {
         $artworkId = $this->decodeBase62($encoded);
         $sizeCode = (int) $size;
 
-        abort_if($artworkId === null || $artworkId < 1, 404);
+        if ($artworkId === null || $artworkId < 1) {
+            return $this->notFound();
+        }
 
         $artwork = $this->resolveArtwork($artworkId);
-        abort_unless($artwork !== null, 404);
+        if ($artwork === null) {
+            return $this->notFound();
+        }
 
         $targetUrl = $sizeCode === 7
             ? $this->resolveOriginalUrl($artwork)
             : $artwork->thumbUrl(self::THUMB_SIZE_MAP[$sizeCode] ?? 'md');
 
-        abort_if(empty($targetUrl), 404);
+        if ($targetUrl === null || $targetUrl === '') {
+            return $this->notFound();
+        }
 
         return redirect()->away($targetUrl, 301);
     }
 
+    private function notFound(): Response
+    {
+        return response('', 404, [
+            'Content-Type' => 'text/plain; charset=UTF-8',
+            'Cache-Control' => 'no-store',
+        ]);
+    }
+
     private function decodeBase62(string $value): ?int
     {
         if ($value === '') {
@@ -86,11 +101,6 @@ final class LegacyArtworkPhotoController extends Controller
     {
         $cdn = rtrim((string) config('cdn.files_url', 'https://cdn.skinbase.org'), '/');
         $filePath = trim((string) ($artwork->file_path ?? ''), '/');
-
-        if ($filePath !== '') {
-            return $cdn . '/' . $filePath;
-        }
-
         $hash = strtolower((string) preg_replace('/[^a-f0-9]/i', '', (string) ($artwork->hash ?? '')));
         $ext = ltrim((string) ($artwork->file_ext ?: $artwork->thumb_ext ?: 'webp'), '.');
 
@@ -98,6 +108,10 @@ final class LegacyArtworkPhotoController extends Controller
             return $artwork->thumbUrl('xl') ?? $artwork->thumbUrl('lg') ?? $artwork->thumbUrl('md');
         }
 
+        if ($filePath !== '') {
+            return $cdn . '/' . $filePath;
+        }
+
         $prefix = trim((string) config('uploads.object_storage.prefix', 'artworks'), '/');
         $firstDir = substr($hash, 0, 2);
         $secondDir = substr($hash, 2, 2);